Assigistoe of oke-foueth



(No Model.)

T. P. RANDALL.

' THILL COUPLING.

No. 313,528. Patented Mar. 10, 1885.

Attorneysilnrrnn TATES Parana" Orriee.

TIMOTHY I. RANDALL, OF SCOFIELD, MICHIGAN, ASSIGNOR OF ONEFOURTH TOELISHA WV. RANDALL, OF SAME PLACE.

THILL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 313,528, dated March10, 1885.

Application filed Novembcr 29, 1984.

T aZZ whom it may concern:

Be it known that I, TIMOTHY P. RANDALL,

a citizen of the United States, residing at Scofield, in the county ofMonroe and State of Michigan, have invented a new and useful Improvementin Thill-Couplings, of which the following is a specification, referencebeing had to the accompanying drawings.

My invention relates to thill-couplings; and it has for its object toprovide improved means for connecting the thill and draw irons,wherebysaid thill-irons may be readily removed from the draw-irons whendesired.

A further object of the invention is to pro vide improved means forconnecting the draw and thill irons which shall be cheap and simple intheir construction, and which will hold the parts in place againstaccidental detachment.

\Vith these ends in view the invention consists in the improvedconstruction and combinations of parts hereinafter fully described, andpointed out in the claims.

In the drawings, Figure l is a side elevation of a thill-couplingconstructed in accordance with my invention. Fig. 2 is a longitudinalvertical section of the same. Fig. 3 is a transverse vertical section,and Fig. 4 is a perspective View of the thill -irons detached from thedraw-iron.

In the accompanying drawings,in which like letters of reference indicatecorresponding parts in all the figures, A represents the drawiron, whichis provided on its upper side near the forward end thereof with adovetailed recess, a.

B represents the clip, the ends of which pass through holes or openings0, said ends being screw-threaded. Upon the ends of the clip is mounteda flat spring-plate, O, which is held in place by nuts 0, which alsosecure the clip in position. The forward end of the springplate extendsslightly beyond the forward end of the draw-iron, and is bent downwardlyto form a finger-piece. A recess or opening, (I, is provided in thedraw-iron near the forward end of the dovetailed recess or seat, andadapted to enter this recess or opening and project above the same is alug formed upon the up- 50 per side of the spring-plate.

(N0 model.)

D represents a plate which is dovetailed in form, and which is providedwith an upwardly-extending lug or ear, f, having a hole or opening andlocated midway between the sides of the dovetailed plate.

E represents the thill-iron, which is provided with rearwardly-extendingears or lugs g, which are adapted to fit over the lug upon thedovetailed plate. A bolt passes through the registering holes oropenings of the ears or lugs and pivotally secures the thill-iron to thedovetailed plate, the bolt being held rigid in the ears of thethill-iron and turning there with. The dovetailed plate is provided onits upper side with a circular recess or depres sion, in which islocated a strip of rubber, which serves as a seat for the ears or lugson the thill-iron.

The operation is as follows: The dovetailed plate is slid into thedovetailed recess or seat of the draw-iron, and when the recess on theunder side of the dovetailed plate has reached the upwardly-projectinglug of the springplate said lug will seat itself in such recess andprevent the detachment of the plate until thelug has been removed fromsaid recess. To detach the plate the finger-piece of the spring-plate ispushed downwardlyand forces the lug from engagement with the plate,which may then be readily removed. By this means of attachment thethills of a carriage may be readily removed when so desired or foundnecessary. Moreover, the means of attachment are cheap, simple, andeffective, and can be readily and easily applied.

Having fully described myinvention, whatI claim as new, and desire tosecure by Letters Patent, is-

1. In a thill-coupling, the combinatiomwith a draw-iron, of a detachableplate carrying a j ournaled thill iron, and a spring-plate for holdingsaid plate against accidental detachment, as set forth.

2. The combination, with a draw-iron hav-' ing a dovetailed recess, of adovetailed plate carrying ajournaled thill-iron, and a springplate forholding the parts in position, substantially as set forth.

3. In a thill-coupling, the eombination,with a draw-iron having adovetailed recess upon 100 its upper side, of a dovetailed platecarrying I spring-p1ate secured to the under side of the a journaledthill-iron, and a spring-plate eardraw-iron, said plate having anupwardly-prorying a lug adapted to look said draw-iron jeeting lug, asset forth. and dovetailed plate in position, as set forth. In testimonythat I claim the foregoing as 15 5 4. In athill-coupling, theC0li1billLl1lOl],Wlb11 my own I have hereto affixed my signature in adraw-iron having a dovetailed recess upon presence of two Witnesses. itsupper side near the forward end thereof, T and an opening eonnnunieatingwith said re- IIMO PHY RAB DALL" cess near the forward end thereof, of adove- \Vitnesses:' x0 tailed plate carrying a journaled thill-iron, JOHNKILEY,

and having a recess on its under side, and a JULIUS KING.

